Skandapurana 17.18.174

17.18.174

.. nārada uvāca .. ..
prasādaṃ kuru deveśa yuddhārthaṃ kautukaṃ mama ..
ekena brāhmaṇenājau hanyaṃte kṣatriyā yadā ..
pitrā proktaṃ ca me pūrvaṃ tadā yuddhaṃ bhaviṣyati..174..

Nārada said: / "Be gracious, O Lord of Gods, for I have a curious desire for battle. / When kṣatriyas are slain in battle by a single brahmin, / as was previously told to me by my father, then battle shall take place.